HGVul: A Code Vulnerability Detection Method Based on Heterogeneous Source-Level Intermediate Representation

Table 4

Performance of different IR. Performance of different IR on Big-Vul-VP (%).

IR	Acc		Recall	F1	FNR	FPR
AST	90.8	90	92	91.4	8	10.6
AST+	90.2	89.5	92.9	91.1	7.1	12.9
CFG	87.4	86	91.3	88.5	8.7	16.9
PDG	81	80.2	86.6	82.9	13.4	25.1
CPG	87.1	85.7	90.4	88	9.6	16.6
CPG+	92.3	92.4	92.8	92.6	7.2	8.4